US PATENT SUBCLASS 363 / 167
.~.~ With discharge control means

Current as of: June, 1999
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363 /   HD   ELECTRIC POWER CONVERSION SYSTEMS

157  DF  FREQUENCY CONVERSION (f1-f2) WITHOUT INTERMEDIATE CONVERSION TO D.C. {7}
166  DF  .~ By electron tube converter {1}
167.~.~ With discharge control means {2}
168  DF  .~.~.~> Including plural anodes and single cathode device (e.g., vapor arc device)
169  DF  .~.~.~> Thyratron type

DEFINITION

Classification: 363/167

With discharge control means:

(under subclass 166) Subject matter wherein the electronic tube is provided with discharge control means.

(1) Note. The discharge control means may include a grid, igniter, magnetic element, etc.

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems,

227, and 291 for current or voltage magnitude control systems having an electronic tube as the control means, wherein the electronic tube is provided with discharge control means.